How do I integrate this:
(x^2)sinh[mx] dx
My Calc I professor skipped over this, saying we wouldn't need it. Turns out, we do!
I tried integrating by parts with u=sinh (mx) and dV= x^2. Now I have
sinh [mx]/3 - (1/3) integral x^3cosh [mx].
So I tried integrating by parts again, using u= x^3, but it just makes it more complicated.
And sorry my posts are hard to read. Not sure how to use the tags for these.